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Taxonomic Study on Some Species of Angiosperms Found in Myingyan Degree College Campus, Myingyan Township

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Taxonomic Study on Some Species of Angiosperms Found in Myingyan Degree College Campus, Myingyan Township University Journal of Creativity and Innovative Research 2020 Vol-01 Issue-01 Taxonomic Study on Some Species of Angiosperms Found in Myingyan Degree College Campus, Myingyan Township Tin Tin Maw San San Aye Yee Yee Win Myingyan Degree College Yadanabon University Banmaw University [email protected] [email protected] [email protected] m Abstract 2. Materials and Methods The present paper deals with taxonomic study on Plants were collected from Myingyan Degree some species growing in Myingyan Degree College College Campus during June to August 2019. All the Campus, Myingyan Township. Some species of collected specimens were recorded by color photograph flowering plants were collected from June to August during flowering period. These specimens were kept 2019. Among them, (8) species belonging to (8) genera immediately into plastic bags to identify and classify from (7) families were recorded, identified and systematically. All collected specimens are identified by classified. The morphological characters of these the literature: Flora of British India [6], Flora of Java [1], species were also described with Scientific names, Flora of Ceylon [4]. All the resulting specimens were Myanmar names, English names, family. systematically arranged into families according to the classification system of APG IV system [2]. Genera and Keywords: Taxonomic, Myingyan Degree College, species were also arranged by alphabetically. The Identified artificial key to all the studied species had also been constructed. 1. Introduction Finally, the specimens were mounted together with a label and field data on a herbarium sheet. The herbarium Taxonomic study is the learning of the kinds of specimens had been systematically arranged and they plants on the earth and their names distribution and were kept in the Herbarium at Botany Department, habitat characteristics. All these products of taxonomic Myingyan Degree College. research add to the resources of an area, to studies on land potentials, to evaluations of resources of raw 3. Results materials possibly studied to main needs in a multiplicity of activities. In this research, 8 species belonging to 8 genera of 7 The flowering plants, known scientifically as the families under class Eudicot (Dicotyledone) shown in class Angiospermae, are the dominant group at vascular Table (1). The taxonomic characterization of all plants an earth today. Not only are the flowering plants identified species in Myingyan Degree College, the largest and most successful plant group today but Myingyan Township were recorded. they are of fundamental importance to the life and survival of man [3]. Table 1. List of collected species Myanmar is exceptionally rich in plant biodiversity, Group Order Family No. Scientific name Eudicots Ranunculales Papaveraceae 1. Argemone but during the last-half century very few new plant mexicana L. collections have been made in the area [8]. About 7,000 Fabales Fabaceae 2. Cassia javanica L. species are included in the book of trees, shrubs, herbs 3. Clitoria ternatea L. and principal climbers etc [7]. Recently, the revised checklist of Myanmar [8] contains 273 families, 2371 Sapindales Meliaceae 4. Melia azedarach L. genera, and over 4,800 species. Malvales Malvaceae 5. Pavonia odorata The present study deals with the number of growing Willd. in Myingyan Degree College. This area lies between Brassicales Cleomaceae 6. Cleome viscosa L. North latitudes 21°25'22.3" and East longitudes Gentianales Apocynaceae 7. Vallaris solanacea 95°22'27.2". (Roth) Kuntze. The aims of this investigation to identify and classify the some flowering plants from Myingyan Degree Lamiales Acanthaceae 8. Ruellia tuberosa L. College Campus to describe the morphological characters of Angiosperms from study area, to Argemone mexicana L., Sp. Pl. 508. 1753. (Figure 1. contribute the valuable taxonomic information for A) further scientific research and to provide partially Myanmar name : Kha ya; Kone kha ya fulfillment in flora of Myingyan Township. English name : Mexican poppy, Prickly poppy Family name : Papaveraceae 374 University Journal of Creativity and Innovative Research 2020 Vol-01 Issue-01 Annual, erect herb, prickly, stems and branches about 1.0 cm long; keels ovate-oblong, 3.5-4.5 mm long. terete, glabrous, latex yellow, foetid, bitter. Leaves Stamens 10, diadelphous; filaments filiform; anthers simple, alternate; exstipulate; petiole sessile; blades dithecous, uniform, dorsifixed, dehiscing by oblong- ovate to elliptic-oblong, 10.0-15.0 cm by 2.5-5.0 longitudinal slit. Carpel 1; ovary superior, linear, cm, subamplexical at the base, spinulose-dentate at the unilocular with few ovules on the marginal placentae; margin, acute at the apex, irregular pannatifid with style terminal; stigma globose. Pods linear, flat, white prickles on the nerves of both surfaces. dehiscent, glabrous, 7-10 seeded. Seeds suborbicular, Inflorescences terminal solitary cymes. Flowers bisexual, compressed, brown, non-endospermic. actinomorphic, hexamerous, hypogynous, bright yellow, Melia azedarach L. Sp. Pl. ed. 1: 384. 1753. (Figure 1. 3.0-4.0 cm in diameter; pedicellate; bracteate; D) ebracteolate. Sepals 3, free, oblong, concave, spinous Myanmar name : Pantama; without, glabrous within. Petals 6, in 2 whorls, free, Thin baw pantama obovate, glabrous. Stamens numerous, free inserted; English name : Bead trees filaments filiform; anthers dithecous, basifixed, Family name : Meliaceae longitudinal dehiscing. Carpels 4-6, fused; ovary Perennial, trees; stems and branches terete, glabrous. superior, ovoid, unilocular with numerous ovules on the Leaves bipinnately compound, imparipinnate, alternate, parietal placentae; style subsessile; stigma 5-lobed. exstipulate; petiolate, pulvinous; leaflets 3 to 7-paired; Fruits capsular oblongoid, dehiscing apically by 3 to 7 blade ovate or oblong-lanceolate to elliptic, 3.0-5.0 cm valves, many-seeded. Seeds subspherical, blackish, by 1.0-2.5 cm, acute to oblique at the base, serrate along endospermic. the margin, acute to acuminate at the apex, glabrous on Cassia javanica L., Sp. Pl. 379. 1753. (Figure 1. B) both surfaces. Inflorescences axillary paniculate cyme, Myanmar name : Ngu sat many-flowered. Flowers bisexual, actinomorphic, English name : Pink and white, pentamerous, hypogynous, lilac or bluish, about 1.0 cm Shower tree in diameter; pedicellate; bracteate; ebracteolate. Calyx Family name : Fabaceae 5-lobed, campanulate; tomentose. Petals 5, free, oblong- Perennial, deciduous trees; stems and branches terete, ovate, pubescent. Stamens 10, monadelphous, exserted; densely pubescent when young. Leaves unipinnate- staminal tube 1.0-2.0 mm long, alternate with the compound, paripinnate, alternate; stipulate; petiolate; staminode; anthers dithecous, basifixed, dehiscing by leaflets 10- to 18-paired, oblong, 2.0-3.5 cm by 1.0-1.3 longitudinal slit. Carpels 5, fused; ovary superior, ovoid, cm, obtuse at the base, entire along the margin, pentalocular with one ovule in each locule on the axile mucronate at the apex, pubescent on both surfaces. placentae; style terminal; stigma capitate. Fruits Inflorescences axillary or terminal raceme, many- drupaceous, rounded, glabrous. Seeds rounded, black, flowered. Flowers bisexual, zygomorphic, pentamerous, smooth, endospermic. hypogynous, pink, fragrant, showy, pedicellate; bracteate, persistent; ebracteolate. Sepals 5, free, ovate, Pavonia odorata Willd., Sp. Pl. 837. 1800. (Figure 2. unequal, pubescent. Petals 5, free, ovate-oblong, A) tomentose. Stamens 10, 7 fertile, free, inserted; filament Myanmar name : Ba lar unequal in length; anthers dithecous, basifixed, English name : Unknown dehiscing by apical pores; staminodra 3. Carpel 1; ovary Family name : Malvaceae superior, linear, curved, unilocular with many ovules on Annual, erect herbs; stems and branches terete, the marginal placentae; style terminal, curved; stigma glandulary hairy. Leaves simple, alternate; stipulate; simple. Pod terete, indehiscent, brownish-black, many- petiolate; blades ovate, suborbicular 3.0-4.0 cm by 2.0- seeded. Seeds ovate, embedded in brown pulp, non- 2.5 cm, shallowly 3-lobed, subcordate, dentate along the endospermic. margin, acute at the apex, stellate hairy on both surfaces. Clitoria ternatea L. Sp. Pl. ed. 1:753. 1753. (Figure 1. Inflorescences axillary and solitary cyme. Flowers C) bisexual, actinomorphic, pentamerous, hypogynous, Myanmar name : Aung me nyo pinkish-white, 1.0-1.5 cm in diameter, morning English name : Butterfly pea; Blue pea bloomer; pedicellate; epicalyx segments 10-14, linear- Family name : Fabaceae filiform, hairy. Calyx campanulate, 5-lobed, glabrous. Annual, twining herbs; stems and branches terete, Corolla rotate, 5-lobed, glabrous. Stamens numerous, pubescent. Leaves unipinnately compound, monadelphous, exserted; filament linear; anthers imparipinnate, alternate; stipulate; petiolate; leaflets 5 or monothecous, dorsifixed, dehiscing by longitudinal slit. 7, ovate-oblong, 2.5-3.5 cm by 2.0-2.5 cm, obtuse at the Carpels 5, fused; ovary superior, globoid, pentalocular base, entire along the margin, obtuse at the apex, with one ovule in each locule on the axile placentae; pubescent on both surfaces. Inflorescences axillary and style filiform; stigmatic branches 10, capitate. Fruits solitary cymes. Flowers bisexual, zygomorphic, schizocarpic, globoid, mericarps 5, 5-seeded, pubescent. pentamerous, hypogynous, bright blue, about 1.8-2.0 cm Seeds reniform, dark-brown, endospermic. in diameter; pedicellate; bracteate; bracteolate.
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